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C1V1=C2V2

Dilution Equation
 

  • C1 is the concentration of the stock solution.
  • V1 is the volume to be removed (i.e., aliquoted) from the concentrated stock solution.
  • C2 is the final concentration of the diluted solution.
  • V2 is the final volume of the diluted solution. This is the volume that results after V1 from the stock solution has been diluted with diluent to achieve a total diluted volume of V2.
  • An alternative and commonly-used notation for this equation is M1V1 = M2V2, where M is used in place of C.

Dilution calculator - ppb, ppm, ppt, pph

Each calculator cell shown below corresponds to a term in the formula presented above. Enter appropriate values in all cells except the one you wish to calculate. Therefore, at least three cells must have values, and no more than one cell may be blank. The value of the blank cell will be calculated based on the other values entered. After a calculation is performed, the calculated cell will be highlighted and subsequent calculations will calculate the value of the highlighted cell (with no requirement to have a blank cell). However, a blank cell has priority over a highlighted cell.
For convenience, this calculator allows you to select different volume and concentration units, and the necessary conversions are carried out for you to obtain the value of the blank cell in the desired unit.
 
Dilution Calculator
Stock concentration ppm (mg/kg)
Volume from stock mL
Final concentration ppm (mg/kg)
Final solution volume mL
        

 

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